Hi everyone, so I'm veg phase with a Hindu Kush Autoflower, and recently these white see through spots are appearing, and rapidly. I've seen spider mites before and I cant see any on the undersides of the leaves. I have a feeling it's a nutritional deficiency but I'm in England so an online suggestion on what to get to fix this would be great. Thank you! Also this is my first grow, so any tips or anything that you see is wrong, please say.